/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionVirtualTextureFeatureSwitch.h
Material output expression to switch logic according to whether virtual texturing is supported on this project, platform and feature level.
class UMaterialExpressionVirtualTextureFeatureSwitch : public [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression)
FExpressionInpu...
No
Used if virtual texture is not supported.
FExpressionInpu...
Yes
Used if virtual texture is supported.